Region
Developing countries --
15
United States --
14
United States
12
China --
11
East Asia --
8
Malaysia --
7
Asia
6
Asia --
6
China
6
Pacific Area --
6
Southeast Asia --
6
Arab countries --
5
Europe --
5
Japan --
5
Malaysia
5
Singapore --
5
East Asia
4
Korea (South) --
4
Philippines --
4
South Asia --
4
Soviet Union --
4
Asia, Southeastern
3
Australia --
3
Developing countries
3
Former Soviet republics --
3
Hong Kong (China) --
3
Indonesia --
3
Latin America --
3
Pakistan --
3
Russia (Federation) --
3
Taiwan --
3
Thailand --
3
ASEAN countries --
2
Arab countries
2
Asia, Southeastern --
2
Australia
2
Azerbaijan --
2
Brazil --
2
Estonia --
2
Europe
2
Europe, Eastern --
2
European Economic Community countries --
2
Germany (West) --
2
Great Britain --
2
Hong Kong
2
Indonesia
2
Japan
2
Kenya --
2
Korea (South)
2
Laos --
2
more ...